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GB/T 21353-2008 English PDF

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GB/T 21353-2008: Test method for determining the resistance of paint film to algae
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PDF similar to GB/T 21353-2008


Standard similar to GB/T 21353-2008

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Basic data

Standard ID GB/T 21353-2008 (GB/T21353-2008)
Description (Translated English) Test method for determining the resistance of paint film to algae
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G50
Classification of International Standard 87.040
Word Count Estimation 8,884
Date of Issue 2008-01-11
Date of Implementation 2008-07-01
Quoted Standard GB/T 1727-1992; GB/T 3186
Regulation (derived from) Announcement of Newly Approved National Standards No. 1, 2008 (No. 114 overall)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the architectural coatings outdoor film anti-algae performance test methods and evaluation of results. This standard applies to outdoor architectural coating film performance testing anti-algae, other anti-algae coating film performance testing can refer to this standard.

GB/T 21353-2008: Test method for determining the resistance of paint film to algae

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for determining the resistance of paint film to algae ICS 87.040 G50 National Standards of People's Republic of China Film anti-algae assays Posted 2008-01-11 2008-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is a normative appendix. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee paint pigment (SAC/TC5) centralized. This standard was drafted. Guangdong Institute of Microbiology (Guangdong Province, microbiological analysis Testing Center), China National Chemical Construction Corporation, Changzhou coating Material Chemical Research Institute (National Paint Quality Supervision and Inspection Center). The main drafters of this standard. Xie Bao, Zhao Ling, Ouyang sheng, Chen Yi this, PENG. Film anti-algae assays

1 Scope

This standard specifies the architectural coatings outdoor paint anti-algae performance test methods and evaluation of results. This standard applies to architectural coatings outdoor paint performance testing anti-algae, other anti-algae coating film performance tests refer to this standard.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 1727-1992 Film General Preparation Method GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling (GB/T 3186-2006, ISO 15528.2000, IDT)

3 Terms and Definitions

3.1 No root, stem, leaf differentiation, can be lower autotrophic eukaryotes photosynthesis. In this standard it refers vulnerable to rain soaked, light According to the external walls of the film under the conditions and other outdoor surface spread of a growing class of green moss-like small green unicellular or filamentous algae were they It will affect the appearance of the film and reduces the life of the film. 3.2 The use of chemical or physical methods to kill algae or impede the growth and reproduction of algae and active process.

4 Test principle

This test method is to simulate the natural growth of algae environmental conditions, according to the physiological characteristics of algae growth accelerated test design, Determination of film used to kill algae inhibition effect, to evaluate the performance of the film anti-algae by using an intuitive way of determining the extent of test algae growth.

5 Test conditions

5.1 Equipment and Materials 5.1.2 biological safety cabinets or clean benches. 5.1.3 hygrometer. 5.1.4 scales. accuracy 0.01g. 5.1.5 fridge. 5.1.6 Autoclave. 5.1.7 tissue grinder. 5.1.8 chromatography sprayer. 5.1.9 aluminum plate (or glass, tin sheets, filter paper, etc.). 5.1.10 dish. pan bottom diameter 9cm. 5.1.11 alcohol lamp.

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